1.

What is formed when two or more substances are combined

Answer»

ANSWER:

ᴛᴡᴏ ᴏʀ ᴍᴏʀᴇ ᴇʟᴇᴍᴇɴᴛs ᴄᴏᴍʙɪɴᴇᴅ ɪɴᴛᴏ ᴏɴᴇ sᴜʙsᴛᴀɴᴄᴇ ᴛʜʀᴏᴜɢʜ ᴀ ᴄʜᴇᴍɪᴄᴀʟ ʀᴇᴀᴄᴛɪᴏɴ, sᴜᴄʜ ᴀs ᴡᴀᴛᴇʀ, ғᴏʀᴍ ᴀ ᴄʜᴇᴍɪᴄᴀʟ ᴄᴏᴍᴘᴏᴜɴᴅ. ᴀʟʟ ᴄᴏᴍᴘᴏᴜɴᴅs ᴀʀᴇ sᴜʙsᴛᴀɴᴄᴇs, ʙᴜᴛ ɴᴏᴛ ᴀʟʟ sᴜʙsᴛᴀɴᴄᴇs ᴀʀᴇ ᴄᴏᴍᴘᴏᴜɴᴅs. ... ᴄʜᴇᴍɪᴄᴀʟ sᴜʙsᴛᴀɴᴄᴇs ᴀʀᴇ ᴏғᴛᴇɴ ᴄᴀʟʟᴇᴅ 'ᴘᴜʀᴇ' ᴛᴏ sᴇᴛ ᴛʜᴇᴍ ᴀᴘᴀʀᴛ ғʀᴏᴍ ᴍɪxᴛᴜʀᴇs.



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